Price stated below is for one copy of the script, that means I intend to sell it multiple times. In case you want to be the only buyer please contact me.
For the rate stated by you is for a single copy where there might have unlimited copy of the script in this case no one should buy such a script because if you or any of the owner of the script can find a vulnerable then the user will be able to hack all the site which will be operating by your script. So, everyone should stay away from you.
I agree with what you said due to do the possible risk involve and after I did some research. I think the OP just emulates a
previous thread posted on this forum which offers almost the same service.
However, I don't support this kind of motive and I believe it better to run a total decentralized exchange which I believe will be profitable since most exchanges are blending to the KYC/AML rules.